Question about HP Pavilion a705w PC Desktop
Your system is failing the POST, I think. You'll need to troubleshoot it by opening the case and unplugging everything but the CPU and memory and video. Now power it on. If there still is a problem, try removing one of the sticks of memory.
Once you isolate the problem, you can replace the part that has gone bad.
Posted on Feb 17, 2012
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Posted on Jan 02, 2017
Do you have two video outputs on your PC ie. one on the motherboard adn a separately installed card maybe? If you do you need to set the BIOS so that it uses the AGP/PCIE video card and not the 'onboard'. Try the onbopard vodeo card first to see if you get a signal there.
If you do NOT have two video outputs, and you can not see a signal then you may have a prblem wiht your monitor itself. Is this a known working monitor to start with?
Posted on Jun 05, 2009
Monitor into Small Blue connector at back.
If Mouse and keyboard are Round and not Rectangular in shape then that's a PS/2 Mouse and keyboard. Purple goes into Keyboard slot at back. Green goes into Mouse at back. Watch for the design as the pins inside each one need to be inserted accordingly.
If they ARE rectangular then that is a USB connection. On the back connect the keyborad and mouse to the top two. Again, only going to insert one ways.
Posted on Jun 26, 2009
try to plug the keyboard in another computer. If it is analog the lights dont come on the keyboard (caps lock, NUM lock, ect.) it is the tower if the lights do not turn on, it is the keyboard. If your keyboard is USB then try to use it on another computer if it doesnt work it is the keyboard, but if so I would make sure any software the keyboard came with is installed and try it agian.
Posted on Feb 25, 2010
If you have access to a voltmeter I would check the power supply first. Take your cover off, and lay the computer down on its side, open side up. You should see a cable that provides power to your hard drive with an extra one that is free. The color of the wires are red, black, and yellow. Put the meter on DC volts and place the black lead in the black connector and put the red lead in the red connector. You should read +5 volts. Now move the red lead to the yellow connector, you should read +12 Volts. If either one of them is not correct, your power supply is bad. Replace it with a like type or one with a higher power rating to handle upgrades in the future. If the power supply is okay, then with the computer still on its side, look and see if there is a LED next to the CMOS battery. (A flat looking battery a little smaller than a quarter). If this is lit then you have power through the motherboard. Turn the computer back off and replace the CMOS battery. You may also try and reset the CMOS settings. There should be a jumper next to the CMOS battery. With the power still off, pull the jumper and place it across the other open post and leave it like that for about 15 seconds. Now put the jumper back in its original position, and put the new battery in. Turn the computer back on and see if anything is different. If same symptoms, then your best bet is to take it to a certified repairt person. Hope this helps.
Posted on Sep 18, 2010
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